I need to add a field in FCC in receiver channel for csv along with the incoming array from Source

[Shiv05]

The problem is data from source has field and an array .SO when mapping to FCC in receiver channel for creating CSV,the one field mapped is coming only once but the array lines are coming multiple times

WH_NO|IBD|ITEM_NO|BATCH|SKU|QUANTITY|MFG_DATE|EXPIRY_DATE|STOR_TYPE|STOR_SEC|BIN|SUG
0390657434
|1||BNTFR100-Q0|900|10.11.2024|10.11.2027||||M
|2||BNTFR200-Q0|900|10.11.2024|10.11.2027||||M

I need below.0390657434 is not coming in array but outside array

WH_NO|IBD|ITEM_NO|BATCH|SKU|QUANTITY|MFG_DATE|EXPIRY_DATE|STOR_TYPE|STOR_SEC|BIN|SUG
|0390657434|1||BNTFR100-Q0|900|10.11.2024|10.11.2027||||M
|0390657434|2||BNTFR200-Q0|900|10.11.2024|10.11.2027||||M
|0390657434|3||BNTFR100-81|820|10.11.2024|10.11.2027||||M